29140309738 has 8 divisors (see below), whose sum is σ = 43932345732. Its totient is φ = 14496194496.

The previous prime is 29140309733. The next prime is 29140309753. The reversal of 29140309738 is 83790304192.

It can be written as a sum of positive squares in 2 ways, for example, as 23929924249 + 5210385489 = 154693^2 + 72183^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (29140309733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36979695 + ... + 36980482.

Almost surely, 2^29140309738 is an apocalyptic number.

29140309738 is a deficient number, since it is larger than the sum of its proper divisors (14792035994).

29140309738 is a wasteful number, since it uses less digits than its factorization.

29140309738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73960376.

The product of its (nonzero) digits is 326592, while the sum is 46.

The spelling of 29140309738 in words is "twenty-nine billion, one hundred forty million, three hundred nine thousand, seven hundred thirty-eight".